WO2015119097A1 - 車体後部の開口部構造 - Google Patents

車体後部の開口部構造 Download PDF

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Publication number
WO2015119097A1
WO2015119097A1 PCT/JP2015/052935 JP2015052935W WO2015119097A1 WO 2015119097 A1 WO2015119097 A1 WO 2015119097A1 JP 2015052935 W JP2015052935 W JP 2015052935W WO 2015119097 A1 WO2015119097 A1 WO 2015119097A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
wall
curved
width direction
roof
Prior art date
Application number
PCT/JP2015/052935
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English (en)
French (fr)
Japanese (ja)
Inventor
晋栄 望月
Original Assignee
スズキ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by スズキ株式会社 filed Critical スズキ株式会社
Priority to CN201580000381.6A priority Critical patent/CN105143021B/zh
Publication of WO2015119097A1 publication Critical patent/WO2015119097A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/087—Luggage compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/06—Fixed roofs

Definitions

  • the present invention relates to an opening structure at the rear of a vehicle body in which rigidity at an upper portion of an opening for attaching a back door of an automobile is increased.
  • Patent Document 1 a quarter upper reinforcement and a roof back member are arranged in a closed cross-sectional shape below the roof panel at the upper part of the opening at the rear of the vehicle body, so that spot welding or a back door hinge is provided.
  • the side body outer panel and the rear quarter inner panel are joined and joined at the both sides of the upper part of the opening with the back pillar upper force and the quarter between the back pillar upper force and the roof panel. It is described that the upper ring force is arranged to form a double closed section.
  • a hinge mounting reinforcement having a hat-shaped cross section is joined to the roof side inner at the upper part of the opening at the rear of the vehicle body, and the hinge mounting reinforcement and the roof panel are overlapped. Describes that the attachment member of the back door hinge is screwed and joined.
  • the roof side inner follows the rear pillar in one piece.
  • 11 to 13 show one form of a conventional opening structure of the rear part of the vehicle body.
  • FIG. 11 shows the structure of the upper part of the opening 62 for attaching a back door (not shown) of the rear opening / closing type of the rear part of the automobile 61 and its vicinity.
  • the metal roof panel 63 is composed of a flat portion 63a on the center side in the vehicle width direction and curved portions 63b on both sides in the vehicle width direction, and the curved portions 63b on both sides in the rear portion of the roof panel 63 are metal side bodies in the vertical direction. It continues to the upper part of the outer panel 64.
  • the side body outer panel 64 forms a part (outer part) of the rear pillar.
  • Reinforcing member structures 65 made of each reinforcing member are disposed on the upper portion of the opening 62 and on the left and right sides thereof.
  • FIG. 12 shows metal reinforcing members 66 to 70 arranged inside the rear portion of the roof panel 63 and the side body outer panel 64 of FIG.
  • the reinforcing members 66 to 70 are covered with the rear portion of the roof panel 63 and the upper portion of the side body outer panel 64.
  • Each of the reinforcing members 66 to 70 includes a roof back member upper 66 on the center side in the vehicle width direction, a roof back member lower 67 on the lower side thereof, hinge reinforcements 68 on both sides in the vehicle width direction, a reinforcement upper 69 on the lower side thereof, and further It consists of the lower pillar reinforcement 70.
  • Hinge reinforcements 68 are joined to both sides of the roof back member upper 66, pillar reinforcements 70 are joined to both sides of the roof back member lower 67, and the hinge reinforcement 68, the reinforcement upper 69, and the pillar reinforcement 70 are joined to each other.
  • FIG. 13 is a cross-sectional view taken along the line CC of FIG. 11.
  • the roof back member upper 66 and the roof back member lower 67 are joined to each other in a closed cross section at the lower side of the rear portion of the roof panel 63.
  • the rear end portion 67 a is joined to the rear end portion 63 a of the roof panel 63, and the roof back member upper 66 is joined to the upper wall of the roof panel 63.
  • the portion connecting the roof back members 66 and 67 and the rear pillars (64) on both sides in the vehicle width direction is an important part in consideration of the torsional rigidity of the vehicle body 61, and the opening 62 at the rear of the vehicle body is formed. If it is made wider, the thickness of the upper part of the opening 62 becomes smaller and the torsional deformation tends to increase. 11 to 13, in order to increase the torsional rigidity of the vehicle body 61, the roof back members 66 and 67 are closed, and reinforcing members such as a hinge reinforcement 68, a reinforcement upper 69, and a pillar reinforcement 70 are added. ing.
  • an object of the present invention is to provide an opening structure at the rear of a vehicle body that can secure high rigidity while reducing the weight with a small number of reinforcing members against twist generated in the vehicle body.
  • the opening structure for the rear part of the vehicle body according to claim 1 of the present invention has a reinforcing member structure in the vehicle width direction above the opening part for installing the back door at the rear part of the vehicle body.
  • the reinforcing member structure Arranged inside the roof panel and the side body panel along the general shape, the reinforcing member structure has a bottom wall surface that is continuous with a certain width by the front and rear ridgelines, and is formed on a flat portion on the center side of the roof panel.
  • the reinforcing member structure has an upper wall, a front vertical wall and a bottom wall and is formed in a substantially L-shaped cross section, and is connected from the roof panel to the side body panel on the vehicle width direction end side.
  • the upper wall is defined to have a narrow front-rear width on the center side, and the roof as it goes outward in the vehicle width direction. From the panel to the side body panel To top wall, characterized in that the longitudinal width of the top wall by said curved portion being curved in a downward direction becomes gradually wider.
  • the opening structure of the rear part of the vehicle body according to claim 2 is the opening structure of the rear part of the vehicle body according to claim 1, wherein the curved portion has the upper wall, the front wall, and the rear wall.
  • the ridgeline at the lower end of the rear wall gradually transitions backward from the ridgeline at the upper end of the rear wall as it goes outward, and the rear wall is a vertical wall that is continuous with the vertical wall and inclined rearward.
  • the opening structure of the rear part of the vehicle body according to claim 3 is the opening structure of the rear part of the vehicle body according to claim 2, wherein the curved portion is divided into upper and lower reinforcing members, and the upper reinforcing member in the front view is the vehicle.
  • the outer curved ridge line and the lower reinforcing member each have a vehicle inner curved ridge line, and the front walls of the upper and lower reinforcing members are joined by a flange portion, and the flange portion is continuous with the upper wall on the center side.
  • the middle portion of the curved shape portion it passes between the curved ridge lines inside and outside the vehicle, and transitions downward toward the outer side in the vehicle width direction to coincide with the curved ridge line on the vehicle outer side.
  • the opening structure of the rear part of the vehicle body according to claim 4 is the opening structure of the rear part of the vehicle body according to claim 3, wherein the flange part is parallel to the curved ridge line on the inner side of the vehicle, The distance from the curved ridge line is equal to the vertical width of the vertical wall on the center side.
  • the reinforcing member structure is formed in a substantially L-shaped cross section at the center in the vehicle width direction, and the conventional closed cross-sectional shape is eliminated, thereby simplifying and reducing the weight of the reinforcing member structure.
  • the reinforcing member structure on the roof side is increased by increasing the width of the upper wall toward the outer side in the vehicle width direction in the curved shape portion of the reinforcing member structure.
  • the input from the body can be efficiently distributed to the side body, and it is possible to prevent the change point where the stress is concentrated in the curved shape part, thereby ensuring the rigidity and strength of the opening part well. Can do.
  • the lower ridge line is shifted to the rear side with respect to the upper ridge line in the curved shape portion, and the vertical wall is inclined. And, by changing the inclination angle of the vertical wall at the center side of the roof part and the end part side in the vehicle width direction, compared to the case where the vertical wall is the same and flat in all places, the vehicle width direction It is possible to increase the resistance against the input from, and increase the rigidity and strength of the curved portion.
  • the rigidity and strength of the vertical wall of the curved portion can be increased by passing the flange portion through the position between the ridge line on the vehicle outer side and the vehicle inner side of the curved portion. Thereby, the rigidity and strength of the curved portion can be increased.
  • the stress concentration during deformation of the vehicle body is reduced by making the width formed by the flange portion and the ridge line on the vehicle inner side constant from the center side of the roof portion to the vehicle body side portion. be able to.
  • FIG. 1 is a perspective view (an enlarged view in a frame) showing an embodiment of an opening structure of a rear part of a vehicle body according to the present invention as viewed from the rear of a vehicle.
  • FIG. 2 is a perspective view showing the opening structure of the rear part of the vehicle body as viewed from the passenger compartment side (enlarged view in the frame). It is a top view which similarly shows the opening part structure of a vehicle body rear part seeing from a vehicle upper direction. It is a front view which similarly shows the opening part structure of a vehicle body rear part seeing from the vehicle front.
  • 4A is a cross-sectional view taken along line AA in FIG. 4
  • FIG. 4B is a cross-sectional view taken along line BB in FIG.
  • FIG. 5 is a cross-sectional view corresponding to AA in FIG. 4 including a roof panel. It is a perspective view which shows the relationship between the reinforcement member of the center, both sides, and lower side in the opening part structure of a vehicle body rear part seeing from the vehicle interior side. It is a perspective view which similarly shows the relationship between each reinforcement member of a center, both sides, and an upper side from the vehicle outer side. It is a top view which similarly shows the other relationship of each reinforcement member of a center, both sides, and an upper side. It is a front view which shows the relationship between the center and each upper and lower reinforcement member of both sides. It is an external appearance perspective view (an inside figure is an enlarged view) which shows one form of the opening part structure of the conventional vehicle body rear part. It is a disassembled perspective view which similarly shows the detail of the opening part structure of the conventional vehicle body rear part.
  • FIG. 12 is a sectional view taken along the line CC of FIG.
  • FIG. 1 to 10 show an embodiment of the opening structure of the rear part of the vehicle body of the present invention.
  • FIG. 1 is a view of the upper part of the opening 1 at the rear of the vehicle body 11 as seen from the outside of the vehicle (rear side)
  • FIG. 2 is a view of the opening 1 as seen from the inside of the vehicle (front side).
  • the direction of the vehicle is indicated by front, top and left letters and arrows.
  • the upper portion of the opening 1 at the rear of the vehicle body is stiffened by three kinds of reinforcing members 2 to 4 made of metal. That is, the reinforcing member structure 5 is configured by the roof back member lower 2 on the center side in the vehicle width direction, the hinge reinforcement 3 on the left and right sides in the vehicle width direction, and the pillar reinforcement 4 along the lower side.
  • a straight shape portion is configured by the roof back member lower 2
  • a curved shape portion 34 is configured by the hinge reinforcement 3 and the pillar reinforcement 4.
  • the reinforcing members 2 to 4 are arranged inside the metal roof panel 6 and the left and right side body outer panels 7 (the reinforcing members 2 to 4 are covered by the rear part of the roof panel 6 and the upper part of the side body outer panel 7).
  • the roof back member lower 2 is positioned along a flat portion on the center side of the roof panel 6, and the left and right hinge reinforcements 3 and the pillar reinforcements 4 are arranged on the left and right curved portions of the roof panel 6 and the side body panels 7, 7 ′.
  • Reference numeral 7 ' denotes a side body inner panel.
  • the roof back member lower 2 constitutes a roof back member by itself.
  • the roof back member 2 is formed straight in the vehicle width direction, and the hinge reinforcements 3 and the pillar reinforcements 4 on both sides are formed in a symmetrical shape.
  • each hinge reinforcement 3 and each pillar reinforcement 4 One end (the inner end in the vehicle width direction) of each hinge reinforcement 3 and each pillar reinforcement 4 is connected (joined) to the left and right ends of the roof back member 2, and each hinge reinforcement 4 is above each pillar reinforcement 4. 3 are connected (joined), and the other end portions of the hinge reinforcements 3 and the pillar reinforcements 4 (ends on the outside in the vehicle width direction and downward) are connected (joined) to the upper portions of the side body panels 7 and 7 ′. ) Each hinge reinforcement 3 and each pillar reinforcement 4 have projecting walls 8 and 9 projecting horizontally forward, and the projecting walls 8 and 9 are positioned along the left and right side roof rails 10 of the vehicle body 11.
  • the roof back member 2 is constituted by a front vertical wall 12 and a rear horizontal bottom wall (horizontal wall or base wall) 13 in an L-shaped cross section, and the vertical wall 12 stands upward from the bottom wall 13.
  • the left and right hinge reinforcements 3 and the respective pillar reinforcements 4 are connected to the vertical wall 12 and the bottom wall 13 of the roof back member 2.
  • the bottom wall (base wall) 14 of each pillar reinforcement 4 is located below each hinge reinforcement 3.
  • each pillar reinforcement 4 is located inside the vehicle, and each hinge reinforcement 3 is located outside the vehicle.
  • the roof back member 2 is positioned straight in the vehicle width direction, and the main portions of the left and right hinge reinforcements 3 and the pillar reinforcements 4 (portions excluding the forward projecting walls 8 and 9). Is curved toward the rear of the vehicle (upper side in FIG. 3) in plan view.
  • the hinge reinforce 3 and the pillar reinforce 4 on the inner side in the vehicle width direction are joined to the lower side of the left and right ends of the roof back member 2 so as to overlap each other.
  • the roof back member 2 has an upper wall (flange portion) 16 narrow in the front-rear direction at the top of the front vertical wall 12 (FIG. 4), and the vertical wall 12 intersects the lower and rear bottom wall 13.
  • the main parts of the left and right hinge reinforcements 3 are substantially the same as the curved upper wall (outer peripheral wall) 17 following the upper wall 16 of the roof back member 2 and the rear surface of the vertical wall (front wall) 12 of the roof back member 2.
  • An inclined rear vertical wall (rear wall) 18 following the surface and a substantially vertical front vertical wall (front wall) 19 following the front side of the upper wall (outer peripheral wall) 17 are provided.
  • the curved upper wall 17 gradually increases in the front-rear direction as it goes outward in the vehicle width direction, and the line 20L at the rear end of the upper wall 17 goes backward in a curved shape as it goes outward in the vehicle width direction.
  • the rear vertical wall 18 is inclined downwardly from the rear end line 20L of the upper wall 17 and the lower end line 21L of the vertical wall 18 gradually moves rearward as it goes outward in the vehicle width direction. It intersects with a substantially triangular horizontal bottom wall 22 on the inner side in the vehicle width direction.
  • the bottom wall 22 continues to the bottom wall 13 of the roof back member 2.
  • the back door hinge mounting portion 23 is integrally formed on the bottom wall 22 of the hinge reinforcement 3.
  • the hinge mounting portion 23 protrudes (bulges) upward along the vertical wall 18 from the bottom wall 22, intersects the vertical wall 18 and continues integrally, and has a bolt insertion hole 23 a on the upper wall of the hinge mounting portion 23. ing.
  • Each small hole 24 of the roof back member 2 in FIG. 3 is for positioning or the like.
  • each pillar reinforcement 4 is connected to the left and right sides of the front vertical wall 12 of the roof back member 2, and each front vertical wall 15 is viewed from the front. It is formed in a curved shape (curved downward as it goes outward in the vehicle width direction).
  • the front vertical wall 19 of the hinge reinforcement 3 is arranged on the upper side of each front vertical wall 15 so as to be curved with a smaller bending radius than the front vertical wall 15 of the pillar reinforcement 4.
  • the vertical wall 15 on the front side of the pillar reinforcement 4 is exposed below the vertical wall 19 on the front side of the hinge reinforcement 3.
  • FIG. 4A shows a central AA cross section of the roof back member 2 of FIG. 4
  • FIG. 5B shows a substantially central BB cross section of the hinge reinforcement 3 and the pillar reinforcement 4 of FIG.
  • the vertical wall 12 is raised from the front end of the bottom wall 13 on the lower and rear side of the roof back member 2 so as to be inclined slightly forward from the vertical, and forward from the upper end of the vertical wall 12.
  • a bowl-shaped upper wall (flange portion) 16 is formed so as to protrude horizontally in parallel with the bottom wall 13.
  • the upper hinge reinforcement 3 and the lower pillar reinforcement 4 have front vertical walls 19 and 15, respectively, and a substantially vertical front vertical wall 19 in the upper half of the hinge reinforcement 3.
  • the front vertical wall 15 inclined downward and rearward in the lower half of the pillar reinforcement 4 is joined to each other by horizontal flange portions 25 and 26 protruding forward in the middle.
  • the flange portions 25 and 26 are joined to form one flange portion 45.
  • the vertical wall 19 on the front side of the hinge reinforcement 3 continues to the vertical wall 18 on the long side in the up-down direction inclined downward through the upper wall 17, and the vertical wall 15 on the front side of the pillar reinforcement 4 continues to the horizontal bottom wall 14.
  • the rear vertical wall 18 and the bottom wall 14 are joined to each other by flange portions 27 and 28 that are inclined rearward and rearward.
  • the hinge reinforcement 3 and the pillar reinforcement 4 constitute a closed cross-sectional shape.
  • the upper hinge reinforcement 3 and the lower pillar reinforcement 4 have a substantially parallelogram closed cross-sectional shape (not shown), and the hinge reinforcement 3 and the pillar reinforcement 4
  • the front flange portions (25, 26) are joined at the upper end side of the hinge reinforcement 3 and continue to the upper wall (flange portion) 16 of the roof back member 2 in substantially the same plane.
  • the flange portion 45 formed by the flange portions 25 and 26 of the hinge reinforcement 3 and the pillar reinforcement 4 in FIG. 4 is arranged in a curved shape gradually downward in a front view as it goes outward in the vehicle width direction.
  • FIG. 6 shows a cross-sectional view corresponding to AA of FIG. 4 including the upper roof panel 6, and the reinforcing member structure 5 or the reinforcing member assembly (FIG. 4) is formed only by the roof back member lower 2 having a substantially L-shaped cross section. ) (The roof back member upper is not used). Therefore, compared with the conventional stiffening structure of FIG. The indoor space on the side is enlarged.
  • the rear end portion 13 a of the bottom wall 13 of the roof back member 2 is joined to the rear end portion of the wall portion 30 having a substantially L-shaped cross section at the rear portion of the roof panel 6, and the upper wall (flange portion) 16 of the roof back member 2.
  • the gap 31 in FIG. 6 is because the upward convex part 32 (FIG. 1) of the roof panel 6 is taken as a cross section, and the upper wall 16 is convex part 32.
  • the flat part 33 FIG. 1).
  • FIG. 7 shows that the arrangement of the roof back member 2 and the left and right pillar reinforcements 4 is looked up from the inside of the vehicle.
  • the roof back member 2 includes a narrow upper wall (flange portion) 16 and a front vertical wall 12.
  • the bottom wall 13 has a horizontal bottom wall 13 on the rear side and is formed in a substantially L-shaped cross section.
  • the bottom wall 13 has upper and lower planes continuous with a constant front-rear width (the lower bottom wall surface is replaced with reference numeral 13).
  • the pillar reinforcement 4 includes a curved bottom wall (base wall or inner peripheral wall) 14 that is substantially flush with the bottom wall 13 of the roof back member 2 and a vehicle of the roof back member 2.
  • a vertical wall 12 that is straight in the width direction and a curved vertical wall 15 that continues substantially on the same plane without a step, a protruding wall 9 that protrudes forward from the vertical wall 15, and the upper ends of the vertical wall 15 and the protruding wall 9 are formed.
  • the bottom wall 14 of the pillar reinforcement 4 is bent downward toward the outer side in the vehicle width direction, and the front-rear width (front-rear direction width) of the bottom wall 14 is the other end from one end (the inner end in the vehicle width direction) 14a of the bottom wall 14. (Vehicle width direction outer side end) 14b is uniform, and the bottom wall 14 has upper and lower planes (the bottom wall surface on the lower side is indicated by reference numeral 14) which is continuous in the vehicle width direction with a constant width.
  • the vertical wall 15 of the pillar reinforcement 4 is not bent as much toward the rear of the vehicle as the vertical wall 18 on the rear side of the hinge reinforcement 3 in FIG.
  • reference numeral 3 denotes a hinge reinforcement on the outside of the vehicle
  • 6 denotes a roof panel
  • 7 denotes a side body outer panel
  • the ridge line 36L smoothly continues on one line without a step.
  • the straight line at the rear end of the bottom wall 13 of the roof back member 2, that is, the rear ridge line 37 ⁇ / b> L has no step on the curved line at the rear end of the bottom wall 14 of each pillar reinforcement 4, that is, the rear ridge line 38 ⁇ / b> L. It continues smoothly on the line.
  • the front ridge lines 35L and 36L and the rear ridge lines 37L and 38L are positioned in parallel and continue to the respective front and rear ridge lines 39L in the vertical direction at the rear of the side body inner panel 7 'without any step.
  • FIG. 8 shows the arrangement of the roof back member 2 and the left and right hinge reinforcements 3 as seen from the outside of the vehicle, and the roof back member 2 is placed on one end portion (the inner end portion in the vehicle width direction) of each hinge reinforcement 3.
  • the left and right end portions 2a overlap and are joined.
  • each pillar reinforcement 4 in FIG. 7 is located under each hinge reinforcement 3.
  • the flange portion 25 (FIG. 4) at the lower end of the front vertical wall (front wall) 19 (FIG. 4) of the hinge reinforcement 3 is joined to the flange portion 26 at the upper end of the vertical wall 15 of the pillar reinforcement 4 in FIG.
  • Adjacent to the left and right end portions 2 a of the roof back member 2, a back door hinge mounting portion 23 on the bottom wall 22 side of each hinge reinforcement 3 is located.
  • the upper wall (upper outer peripheral wall) 17 of each hinge reinforcement 3 continues to a substantially same plane without a step on the horizontal upper wall 16 of the roof back member 2, and the rear side of each hinge reinforcement 3 on the vertical wall 12 of the roof back member 2.
  • the vertical wall (rear wall) 18 continues in substantially the same plane without a step.
  • the upper wall (outer peripheral wall) 17 gradually increases in width in the front-rear direction as it goes outward in the vehicle width direction, and a line at the rear end of the upper wall 17, that is, a line at the intersection of the upper wall 17 and the rear vertical wall 18. That is, the ridgeline 20L on the upper side and the rear side is gradually bent backward as it goes outward in the vehicle width direction.
  • the front end line of the upper wall 17 of each hinge reinforcement 3, that is, the line at the intersection of the upper wall 17 and the front vertical wall (front wall) 19 (FIG. 4), that is, the upper and front ridge line 40 ⁇ / b> L is on the upper and rear sides.
  • the ridgeline 20L is not bent rearward (see FIG. 3), and gradually bends downward toward the outer side in the vehicle width direction, and continues to the ridgeline 41L on the rear front side of the side body outer panel 7.
  • the ridgeline 20L on the upper side and the rear side continues to the ridgeline 42L (FIG. 1) on the rear rear side of the side body outer panel 7.
  • the ridge line 20L on the upper side and the rear side of each hinge reinforcement 3 in FIG. 8 is smooth on the line of the intersection of the upper wall 16 and the vertical wall 12 of the roof back member 2, that is, on the ridge line 43L on the upper side and the rear side without any step.
  • the front-rear width (width in the front-rear direction) W4 of the upper wall 16 of the roof back member 2 is formed narrow.
  • the ridge line 40L on the upper side and the front side of each hinge reinforcement 3 smoothly follows the ridge line 43L on the upper side and the rear side of the roof back member 2 or on the upper and rear ridge line 43L without a step. In this way, the rear ridge line 20L and the front ridge line 40L on the upper side of each hinge reinforcement 3 are aggregated so as to be substantially one line or one line in the roof back member 2.
  • the line at the lower end of the vertical wall 18 on the rear side of the hinge reinforcement 3 that is, the line at the intersection of the vertical wall 18 and the bottom wall 22, that is, the rear and lower ridge line 21 ⁇ / b> L It arrange
  • the left and right hinge reinforcements 3 form a closed cross-sectional area E2 along with the pillar reinforcement 4 over the entire length in the vehicle width direction, and the central roof back member 2 forms a substantially L-shaped cross-sectional area E1 over the entire length in the vehicle width direction. (See FIG. 5).
  • the opening structure at the rear of the vehicle body is composed of a roof back member lower 2, left and right hinge reinforcements 3, left and right pillar reinforcements 4, a roof panel 6, and left and right side body panels 7, 7 '.
  • the roof back member lower 2, the hinge reinforcement 3, and the pillar reinforcement 4 are installed inside the roof panel 6 and the side body outer panel 7.
  • the hinge reinforcement 3 and the pillar reinforcement 4 are connected to both ends of the roof back member lower 2, and the hinge reinforcement 3 is connected above the pillar reinforcement 4 (see FIGS. 1 and 2).
  • the vertical wall 12 is provided on the front side of the roof back member lower 2, and the vertical wall 12 is connected to the left and right hinge reinforcement 3 and the pillar reinforcement 4.
  • a hinge attachment portion 23 is installed in the hinge reinforcement 3 (see FIGS. 3 and 4).
  • the lower ridge lines 35L, 36L, 37L, and 38L of the roof back member lower 2 and the pillar reinforcement 4 are passed through the front and rear sides without any step between the roof back member lower 2 and the pillar reinforcement 4 and It connects without a level
  • the ridge lines 43L, 20L, 40L on the upper side of the roof back member lower 2 and the hinge reinforcement 3 pass through the left and right with a line having no step, and the ridge lines 20L, 40L on the front side and the rear side of the hinge reinforcement 3 are the roof back member.
  • the ridgelines 20L, 40L, and 43L are connected so as to become one at 2 (see FIGS. 7 and 8).
  • both the vertical walls 18, 15, and 12 become continuous vertical walls, and the vehicle body is twisted. Deformation of the connecting portion between the roof back member 2, the hinge reinforcement 3 and the pillar reinforcement 4 during deformation can be suppressed.
  • the roof back member 2 is not required to have a closed cross-section as in the prior art, and it is not necessary to add reinforcing members to the pillar reinforcements 4 on both sides, so that the number of parts is reduced and the weight is reduced.
  • the opening structure at the rear of the vehicle body of the present invention improves the torsional rigidity of the vehicle body and achieves a reduction in the weight of the white body (these have been confirmed by tests and the like). Moreover, the deformation
  • the opening part 1 As a premise structure, it is the structure of the opening part 1 in which a back door is installed at the rear end part of the vehicle, and in the upper part of the opening part 1, inside the roof panel 6 and the side body panel 7 in the vehicle width direction.
  • the reinforcing members 2 to 4 are arranged along the general shape of the vehicle body 11.
  • the reinforcing member structure 5 composed of the reinforcing members 2 to 4 has a flat surface and a curved surface that are continuous with a constant width by the front ridge line 35L (FIG. 7) and the rear ridge line 37L (FIG. 7).
  • the upper wall 16, the front wall portion (vertical wall) 12, and the rear bottom wall 13 Corresponding to the flat portion on the center side in the vehicle width direction of the roof panel 6, the upper wall 16, the front wall portion (vertical wall) 12, and the rear bottom wall 13 with the vehicle inner plane as the bottom surface
  • (R-shaped part) 34 is formed in the reinforcing member structure 5, and the curved-shaped part 34 has a closed cross-sectional structure.
  • the upper walls 16 and 17 of the reinforcing member structure 5 have a narrow front-rear width at the vehicle center portion (a roof panel flat portion) and go outward in the vehicle width direction.
  • the roof panel 6 continuously curves downward from the vehicle side surface (side body 7 side), and at the side end of the vehicle, the width becomes wider in the front-rear direction toward the vehicle lower direction.
  • the front and rear wall portions (vertical walls) 12, 18, 15, and 19 change in the same manner, and the width at the front and rear of the upper wall 17 is configured to be wider at the side end portion of the vehicle than the roof panel 6.
  • the upper and lower ridge lines of the vertical walls 12 and 18 on the rear side of the reinforcing member structure 5 are formed on the lower side of the vertical wall 18 in the curved portion 34.
  • the ridge line 21L is arranged so as to transition to the rear side of the upper ridge line 20L, and the rear wall (rear side vertical wall) 18 is continuous with the vertical wall 12 on the vehicle center side, and is an inclined vertical wall. 18 is constituted.
  • the curved portion 34 of the reinforcing member structure 5 is divided into upper and lower parts, and the upper hinge reinforcement 3 and the lower hinge part 3 are divided.
  • the upper hinge reinforcement 3 forms the vehicle outer (upper) curved ridge 40L
  • the lower pillar reinforcement 4 forms the inner (lower) curved ridge 36L. Has been.
  • a front flange portion 45 is formed by joining the flange portions 25 and 26 of both the reinforcements 3 and 4.
  • the flange portion 45 of the curved shape portion 34 protrudes to the straight shape portion (substantially L-shaped cross section), that is, the upper wall 16 of the roof back member 2, that is, the front side, at the center side of the roof panel 6 (near the parallel portion inside the vehicle). It is continuous with the flange portion and transitions downward as it goes outward in the vehicle width direction.
  • the front side so as to pass between the curved ridge line 40 L on the vehicle outer side and the curved ridge line 36 L on the vehicle inner side
  • the flange portion 45 is disposed, and the lower end side of the curved shape portion 34 makes a transition so as to coincide with the curved ridge line 40L on the vehicle outer side of the hinge reinforcement 3 that is a reinforcing member on the vehicle outer side.
  • the flange portion 45 of the curved shape portion 34 is parallel to the ridge line 36 ⁇ / b> L on the vehicle inner side (lower side) of the curved shape portion 34.
  • the distance W1 to the ridge line 36L is equal to the vertical width (vertical width) W2 of the vertical wall 12 of the roof back member 2, which is a straight and parallel reinforcing member at the top of the roof panel.
  • the reinforcement member structure 5 Since the front and rear width W3 (FIG. 8) of the walls 16 and 17 is widened, the input from the reinforcing member structure 5 arranged on the roof portion is efficiently distributed to the side body 7 of the vehicle, and the reinforcing member By preventing a change point where stress is concentrated at the curved portion 34 of the structure 5, the rigidity and strength of the opening 1 at the rear of the vehicle body can be increased.
  • the ridge line 20L on the upper side of the curved shape portion 34 at the vehicle width direction end portion is provided in the longitudinal walls 12, 15, and 19 on the vehicle rear side of the reinforcing member structure 5.
  • the lower ridge line 21L always transitions to the vehicle rear side, the rear vertical wall 18 is inclined, and the rear portion of the roof panel 6 at the center flat portion and the vehicle width direction end portion
  • the curved portion is passed by passing the flange portion 45 through a position between the ridge line 40L on the vehicle outer side of the curved shape portion 34 and the ridge line 36L on the vehicle inner side.
  • the rigidity and strength of the 34 vertical walls 15 and 19 can be increased. Thereby, the rigidity and strength of the curved portion 34 can be increased.
  • the widths W1 and W2 formed by the front flange portion 45 and the ridge line 36L on the vehicle inner side are changed from the center side (flat portion) of the roof panel 6 to the vehicle body side portion.
  • the stress concentration at the time of deformation can be reduced by keeping constant until it reaches.
  • the opening structure at the rear of the vehicle body of the present invention can be used to secure high rigidity while reducing the weight with a small number of reinforcing members against torsion occurring in the vehicle body.
PCT/JP2015/052935 2014-02-05 2015-02-03 車体後部の開口部構造 WO2015119097A1 (ja)

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CN114162221A (zh) * 2020-09-10 2022-03-11 本田技研工业株式会社 车辆的车顶结构

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JP7036059B2 (ja) * 2019-02-21 2022-03-15 マツダ株式会社 車両の後部車体構造
JP7363704B2 (ja) * 2020-07-28 2023-10-18 トヨタ自動車株式会社 車両における骨格部材の補強構造

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